<template>
  <div class="login_info">
    <div class="login_box">
      <!--头像区域-->
      <div class="my_photo">
        <img src="../assets/logo1.png" />
      </div>
      <!--登录的表单-->
      <el-form :model="ruleForm" status-icon :rules="rules" ref="ruleForm" class="demo-ruleForm">
        <el-form-item  prop="username">
          <el-input prefix-icon="el-icon-user" v-model="ruleForm.username"></el-input>
        </el-form-item>
        <el-form-item  prop="password">
          <el-input type="password" prefix-icon="el-icon-lock" v-model="ruleForm.password" autocomplete="off"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
          <el-button @click="resetForm('ruleForm')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { ElMessage } from 'element-plus'


export default {
  name: "login",
  data() {
    return {
      ruleForm: {
        username: 'admin',
        password: '123456',
      },
      rules: {
        username: [
          { required: true, message: '请输入账号',  trigger: 'blur' },
          { min: 5, max: 13, message: '长度在5到13个字符',  trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码',  trigger: 'change' },
        ]
      }
    }
  },
  methods: {
    submitForm(formName) {
      //当前组件下面的所有的引用 对应上面绑定的ref
                      //   validae表单的自定义验证
      this.$refs[formName].validate((valid) => {
        if (valid) {
          //验证成功，开始发请求
          this.axios.post('login',this.ruleForm).then(data=>{
            if( data.data.meta.status != 200 ) return ElMessage.error(data.data.meta.msg);
            //登录成功
            ElMessage.success("登录成功");
            //存一下token
            sessionStorage.setItem('token',data.data.data.token);

            //跳转到后台主界面
            this.$router.push('/home');
          }).catch(err=>{
            console.log(err);
          });

        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  }
}
</script>


<style scoped>
  .login_info{
    background-color: deepskyblue;
    height: 100%;
  }

  .login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 5px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
  }

  .my_photo{
    width: 130px;
    height: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    position: absolute;
    left: 50%;
    top: -30%;
    transform: translateX(-50%);
    z-index: 5;
    box-shadow: 0 0 20px #ddd;
  }

  .my_photo img{
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #fff;
  }

  form{
    width: 90%;
    margin: 80px auto 0;
  }
</style>
